Abstract: A malfunction prediction system 1 includes: an operation data acquisition section 201 that acquires operation data of a hydraulic excavator 10; an inspection data acquisition section 202 that acquires inspection data of the hydraulic excavator 10; a part replacement/repair data acquisition section 203 that acquires part replacement/repair data of the hydraulic excavator 10; and a malfunction prediction section 205 that predicts a malfunction probability of each part of the hydraulic excavator 10, based on the operation data acquired by the operation data acquisition section 201, the inspection data acquired by the inspection data acquisition section 202, and the part replacement/repair data acquired by the part replacement/repair data acquisition section 203.

Abstract: The present invention appropriately executes advance deployment of components. This component advance deployment assistance system includes a server.

Abstract: A computer for a manufacturer includes: a storage device storing amount-of-change determination values specified for respective amount-of-change indexes indicative of tendencies of temporal changes in pieces of sensor data A, B, and C, about a plurality of oil properties including a viscosity, a density, and a dielectric constant of oil; an abnormality determining section determining abnormality of the oil on the basis of the pieces of sensor data A, B, and C about the plurality of oil properties and abnormality determination values SAh, SAl, SBh, and SCh prescribed for the respective pieces of sensor data A, B, and C about the plurality of oil properties; a cause identifying section identifying, when the abnormality determining section determines the oil to be abnormal, the cause of the abnormality on the basis of the type of the oil property determined to be abnormal and the amount-of-change determination value of the oil property.

Abstract: There is provided a server that includes: an inspection item/main part correspondence table in which inspection items of the work machine and main parts of the work machine are associated; an inspection item list acquisition unit acquiring an inspection item list of the inspection target machine based on information about the inspection target machine received from the terminal; and a main part list acquisition unit acquiring a main part list in which the service parts are enumerated, being associated with the inspection items of the inspection target machine, based on the inspection item/main part correspondence table. The main part list acquisition unit transmits the acquired main part list to the terminal via the communication circuit as the selection information about the service parts.

Abstract: A computer for a manufacturer includes: a storage device storing amount-of-change determination values specified for respective amount-of-change indexes indicative of tendencies of temporal changes in pieces of sensor data A, B, and C, about a plurality of oil properties including a viscosity, a density, and a dielectric constant of oil; an abnormality determining section determining abnormality of the oil on the basis of the pieces of sensor data A, B, and C about the plurality of oil properties and abnormality determination values SAh, SAI, SBh, and SCh prescribed for the respective pieces of sensor data A, B, and C about the plurality of oil properties; a cause identifying section identifying, when the abnormality determining section determines the oil to be abnormal, the cause of the abnormality on the basis of the type of the oil property determined to be abnormal and the amount-of-change determination value of the oil property.